[  485.797886] netdevsim netdevsim734 eni734np1: renamed from eth1
[  485.898280] netdevsim netdevsim452 eni452np1: renamed from eth0
[  486.264044] Could not find device with ifindex 2000 in netnsfd 11
[  486.264204] Could not find netns with fd: 2000
[  486.264316] Cannot link a netdevsim to itself
[  486.264448] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).